<!DOCTYPE html>
<html>

<head>
	<meta charset="UTF-8" />
	<title>Document</title>
</head>

<body>
	<script type="text/javascript">
		// function sum(a, b, c) {
		// 	return a + b + c
		//  }
		// 		const res = sum(1, 2, 4)
		// 		console.log(res);

		function sum(a) {
			return (b) => {
				return (c) => {
					return a + b + c
				}
			}
		}

		const res = sum(1)(2)(3)
		console.log(res);
	</script>
</body>

</html>